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Finding the Fourth Proportional to 24.86, 34.32 and 16.67

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Solution

The fourth proportional to 24.86, 34.32 and 16.67 is: 23.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    24.86 : 34.32 = 16.67 : x
  2. Step 2: Convert to fraction form
    24.86/34.32 = 16.67/x
  3. Step 3: Cross multiply
    24.86x = 34.32 × 16.67
  4. Step 4: Simplify right side
    24.86x = 572.03
  5. Step 5: Solve for x
    x = 572.03/24.86
  6. Step 6: Final answer
    x = 23.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.